Preparation of Glass Plate-Supported Nanostructure ZnO Thin Film Deposited by Sol-Gel Spin-Coating Technique and Its Photocatalytic Degradation to Monoazo Textile Dye

Table 1

The grain size (crystalline size) of ZnO thin films with various times of coating, postheated at 550^°C.

Samples of thin film	2𝜃	FWHM = β	D (nm)
2-layer	34.484	0.350	23.9
4-layer	34.471	0.342	24.7
6-layer	34.743	0.358	23.5
8-layer	34.443	0.335	25.1
10-layer	34.462	0.332	25.1